title: Postural variation of the maximum inspiratory and expiratory pressures in normal subjects.
abstract: The maximum static inspiratory and expiratory pressures (MIP and MEP, respectively) were measured in 15 normal male subjects (average age, 27.14 years) in standing and sitting position. The MIP was determined at RV and FRC and MEP was determined at TLC and FRC. No significant differences were found for these parameters between the two postures. Our study proves that the posture adopted by the subject when these two maneuvers are performed does not influence the results obtained.
authors.affiliation: Servei de Pneumologia, Hospital Germans Trias i Pujol, Barcelona, Spain.
authors.forename: J A
authors.initials: JA
authors.lastname: Fiz
authors.forename: A
authors.initials: A
authors.lastname: Texidó
authors.forename: J
authors.initials: J
authors.lastname: Izquierdo
authors.forename: J
authors.initials: J
authors.lastname: Ruiz
authors.forename: J
authors.initials: J
authors.lastname: Roig
authors.forename: J
authors.initials: J
authors.lastname: Morera
mesh_terms: D000328:Adult; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D011187:Posture / Q000502:physiology*; D012119:Respiration / Q000502:physiology*; D012132:Respiratory Muscles / Q000502:physiology; D013147:Spirometry